The grammar in the original text uses "|" to express alternation, but I think that only "/" is valid according to RFC 5234

Verifier notes: The grammar in 6266 is from RFC 2616, not from 5234. 6266 is correct as it stands.
--VERIFIER NOTES--
The grammar in 6266 is from RFC 2616, not from 5234. This text is correct as it stands.